baber/WOPTO huggingface dataset:
Patent GB-960067-A (GB)
Title: Process for preparing filamentary microtapes of labyrinthian cross-section and product
IPC: D01D5/00
Filed: 1961-05-15
Abstract: 960,067. Microtapes. DOW CHEMICAL CO. May 15, 1961 [May 19, 1960 (4); Jan. 24, 1961 (2)], No. 17624/61. Heading B5B. A continuous length of tape of thermoplastic polymeric material is converted into a filamentlike microtape by passage through a confined channel (suitable cross-sections being shown in Figs. 1-5) which effects curling (Fig. 8) or folding (Fig. 9) of the edges of the tape; the edges of the tape and at least one fold may be enclosed in the microtape (Fig. 17). Up to 10 layers may be similarly treated to form a laminated microtape. The polymeric material may be a polymer of vinylidene chloride, ethylene, propylene, isobutylene, vinyl chloride, styrene, hexamethylene adipamide, or ethyleneterephthalate, rubber hydrochloride, cellulose acetate, methyl cellulose, or hydroxypropyl methyl cellulose. Various copolymers of vinylidene chloride are specified. The starting tape may be cast or extruded and may be slit from a wider tape. It may be provided with a thermoplastic coating and may be passed through a bath of a finishing agent, e.g. a lubricant. It may be 20-125 microns thick and 2.5-25 mm. wide. The microtape may have a denier of 100-3000, a ratio of apparent to true density of 0.5-0.9, and a ratio of width to thickness of 2-30. The channel may be in a grooved shoe or rotating roll and may be of decreasing width. A steel roll coated with PTFE may be used. The microtape is preferably withdrawn from the grooved shoe at an angle # (Fig. 14) equal to 15-30 degrees. Unfused material may be fused just before or simultaneously with formation of the microtape. Molecular orientation by stretching may be effected before, during or after formation of the microtape. A microtape may be formed from a fused polyolefin tape at a temperature of 45-70‹ C. at a stretch ratio of 3-9, stretched at a temperature of 150- 165‹ C. at a stretch ratio of 1-3, and relaxed at a temperature of 10‹ C. below the orienting temperature at a stretch ratio of 0.9-0.95. Examples are given.
Patent GB-544986-A (GB)
Title: Improved devices for enabling pilots of aircraft to warn or signal to passengers and crew
IPC: B60Q3/04
Filed: 1940-12-13
Abstract: 544,986. Electric signalling systems. BRITISH OVERSEAS AIRWAYS CORPORATION, CRABTREE, H. S., AUTOPHONE, Ltd., and BALDOCK, L. R. Dec. 13, 1940, No. 17629. [Class 40 (i)] [Also in Group  XXXVII]  In a signalling system for use on aircraft comprising a switchboard 2 located in the pilot's cockpit and one or more indicator boards 27 located elsewhere on the aircraft. the switchboard carries two self-locking tumbler switches 3, 4, either of which is unlocked by the operation of the other or of a cancelling key 7, and an emergency switch 8 of pushbutton type, the switches 3, 4 being provided with tell-tale lamps 5, 6 and the switch 8 with tell-tale lamps 9, 10 of distinctive colour. The indicator board 27 comprises stencil indications illuminated by lamps 28, 29 in circuit with the switches 3, 4, a red disc illuminated by a lamp 30 and a buzzer 31 both controlled by the switch 8. The switch levers 3, 4 are spring- urged towards their upper positions, and when either is operated a slotted cam 14 lifts a common locking bar. 16 about its pivot 17 so that it drops into the slot 15 to lock the switch. The switch is released when the bar 16 is again lifted, either by the operation of the other switch or of'the cancelling key 7 which controls a cam 19. The emergency switch 8 comprises a push-button 20 carrying a pair of strips 23, one of which is furnished with a prong 24 for rotating a contact member 25 through 90 degrees to bridge a pair of fixed contacts 26. The switch is thus restored by pressing the push-button a second time.
Patent GB-913696-A (GB)
Title: Improvements relating to devices for indicating acceleration and retardation
Inventor: CLARKE WALTER WILSON HUGH
IPC: G01P15/04
Filed: 1960-05-19
Abstract: 913,696. Accelerometers. INERTIA SWITCH Ltd. May 19, 1961 [May 19, 1960], No. 17693/60. Class 106 (3). An accelerometer comprises a block 1 provided with a plurality of channels 11, 12, 13, 14, each differently inclined and each leading into a pocket 15, a steel ball 6 free to move in each channel between positions of rest defined by the bottom of the channel and the pocket and visible from outside in at least one of its extreme positions and hooks 3 for mounting the block on a vehicle so that upon acceleration thereof one or more of the balls 6 will ride up its slope and fall into its pocket, thus giving an indication of the acceleration. A generally rectangular block 1 is supported by two clips 3 being adjustably secured thereto by knurled screws 4 in tapped holes passing through slots 8 in the clips 3 whereby the apparatus may be levelled with the aid of another steel ball 5 in an arcuate slot 9 and a mark 10. The block may be circular and supported by one clip. The accelerometer may be used for brake testing, the different pockets 15a being suitably labelled to indicate the efficiency of the brakes.
Patent GB-798479-A (GB)
Title: Reel stand for paper reels
IPC: B65H16/06
Filed: 1955-06-20
Abstract: 798,479. Feeding webs. MOLINS MACHINE CO., Ltd., and LUDDINGTON, R June 12, 1956 [June 20, 1955], No. 17721/55. Class 100(1) A support for paper reels comprises a pair of shafts 1 mounted for rotation in axial alignment, the opposed ends of the shafts being adapted to enter the bore, not shown, of a paper reel, movable gripping members 4 being pivotally mounted in each of the ends and means for actuating these members to cause them to grip the bore. As shown, the members 4 are actuated to grip the paper reel by wedges 5 fixed to a piston rod 6 having a piston 7 slidable in a cylinder 8. The cylinder 8 has inlet valves 9 and 10 for connection to an air supply. The members 4 are retained by a collar 11, such that they pivot upon actuation of the rod 6 to release the paper reel by engagement of a face 17 on each member 4 with the adjacent face of the cooperating wedge 5. To expedite the release of air, an outlet 21 closed by a washer 22 and nut 23 are provided. Brake shoes 18 lined with friction material 19 engage a reduced part 20 of the cylinder 8.
Patent GB-1526563-A (GB)
Title: Fluid operable piston-cylinder device
IPC: F15B15/16
Filed: 1977-06-17
Abstract: 1526563 Fluid pressure actuators DAVY LOEWY Ltd 17 June 1977 [30 April 1976] 17740/76 Heading F1P When ports 7, 8 are connected to the supply and a port 9 to the reservoir, a piston 1 and a rod 2 are moved to the right with respect to a member 5. When the piston 1 reaches the end of its stroke the member 5 moves to the right at substantially the same speed as the piston 1 moved because the extra area on which pressure fluid is acting is equal to the cross sectional area of the wall of member 5 which is relatively small. To return the pistons lines 12, 13 are connected to the source and line 10 to the reservoir.
Patent GB-875419-A (GB)
Title: Improvements in drive and brake units for freewheel hubs
IPC: B62M11/14
Filed: 1960-05-19
Abstract: 875,419. Coaster hubs. FICHTEL & SACHS A.G. May 19, 1960 [July 15, 1959], No. 17754/60. Class 136(2).  A drive and brake unit for free wheel hubs comprises a driving member 26 and a driven member 40 both rotatable and connected by a' screw thread so that the driven member is movable axially along the driving member from a torque-transmitting end-position to a brakeapplying end-position; stops which engage each other over surfaces normal to. the said end-faces, being formed on the adjacent endfaces of the members 26 and 40. The member 40 is screw-threaded internally to engage the screw boss 30 of the member 26. A chainsprocket-wheel 12 drives a sun and planet gear (shown diagramatically at 20) which turns the driver member 26. The driven member 40 carries spring pawls 50 which engage with a ratchet surface 52 inside the hub case 10 to drive the latter in the forward direction. On back-pedalling the pawls override the ratchet and the member 40 moves along the screwed boss 30 to engage a conical surface 44 inside a brake drum 46 and to expand it against a brake surface 48 inside the hub 10. The stops are in the form of a diametral groove 54 cut in the end face of the member 40 into which lugs 60 on the member 26 can enter to engage with the side-faces of the raised parts 56 when the two members are screwed together. The stops may be manufactured by cold-forming.
Patent GB-155798-A (GB)
Title: Improvements in methods of casting metal
IPC: B22C3/00
Filed: 1920-06-29
Abstract: 155,798. McKnight, C. Dec. 20, 1919, [Convention date]. Mould and core materials.-In casting any iron or steel articles, the mould is lined or the core is coated with aluminium or titanium. The coating combines with the gases and oxides in the molten metal and prevents porosity. The coating may be applied in powdered form by dusting or blowing on to mould surfaces. The powder may be mixed with a carrier and brushed or sprayed on. Examples of suitable carriers are molasses, water, or a solution preferably in water of glue, starch, sodium silicate, tannic acid, dextrose, gelatine, or other colloid. In addition a material such as graphite, silica wash, or slacked lime may be employed for lubrication and to prevent the casting from sticking in the mould. A satisfactory series of washes to apply are first, two gallons of sodium silicate, fifty pounds of powdered aluminium, twenty pounds of graphite, made up with water to fifty gallons; second, one pint of molasses, two pounds of powdered graphite, one pound of powdered aluminium made up with water to two gallons. The Specification as open to inspection under Sect. 91 (3) (a) specified also the use of magnesium or any coating having the property of combining with the oxides or molten metal, and stated that the coating was not to be applied in sufficient quantity to affect materially the physical characteristics of the metal of the casting. This subject-matter does not appear in the Specification as accepted.
Patent GB-997905-A (GB)
Title: Control device for converters
IPC: H02M5/27
Filed: 1962-05-09
Abstract: 997,905. Converting. ALLMANNA SVENSKA ELECTRISKA AKTIEBOLAGET. May 9, 1962 [May 10, 1961; Feb. 12, 1962], No. 17787/62. Drawings to Specification. Heading H2F. A polyphase to three-phase converter, of the kind having two reverse parallel connected rectifiers between each phase of the input and each phase of the output controlled by a threephase reference voltage, is controlled by a voltage whose waveform includes the fundamental and at least one of the harmonics divisible by three. Preferably the waveform is trapezoidal. With a sinusoidal control voltage the peak output amplitude is considerably less than the input amplitude, but with the arrangement of the invention a greater output amplitude can be obtained.
Patent GB-1523109-A (GB)
Title: Treatment of sulphide-bearing waters with chlorine dioxid
IPC: C02F1/72
Filed: 1977-04-28
Abstract: 1523109 Treating sulphide containing wastes OLIN CORP 28 April 1977 [4 June 1976] 17843/77 Heading C1C Aqueous solutions containing sulphides are purified by adding chlorine dioxide thereto in an amount of at least 2À7 parts by weight of chlorine dioxide per part of sulphide at a rate of at least 0À35 parts of chlorine dioxide per part of sulphide per second, so as to remove the sulphides by oxidation to sulphates and substantially retard the formation of free colloidal sulphur in the aqueous solution. The process also serves to destroy sulphatereducing bacteria which may be present.
Patent GB-292605-A (GB)
IPC: F16L43/00
Filed: 1928-06-20
Abstract: 292,605. Brown, H. June 23, 1927, [Convention date]. Bends. - A return bend for closely spaced tubes such as are used e.g. in superheaters or preheaters, consists of a pressed or forged intermediate piece b and a pressed or forged tube cap c connected by welding. The cap may have the same wall thickness as the tubes, and the radius of curvature of the outer edge of the bend may be equal to one and a half times the diameter of the tube.
Patent GB-403664-A (GB)
Title: An improved process for making light-sensitive layers
IPC: G03F7/038
Filed: 1932-06-24
Abstract: Artificial resins soluble or swellable in water, for making photographic layers, are obtained by condensing urea or thiourea, their homologues or substitution products with aldehydes, polymers thereof or compounds which split off aldehydes, in the presence or absence of a condensing agent, e.g. a salt such as ammonium formate, albuminous substances or phenols.  The solubility is determined by the proportion of aldehyde, the nature of the condensing agent and the time of reaction.  In an example a water-soluble series is obtained by heating 20 grams urea with 80 grams of 40 per cent formaldehyde and 40 cc. of ammonia, 1.56 per cent, for 1--4 hours. By heating for 6 hours, a resin soluble only in warm water is obtained.
Patent GB-707229-A (GB)
Title: Apparatus for immobilising cattle or other animals in pens
IPC: A01K1/06
Filed: 1950-07-18
Abstract: 707,229 Animal pens. DALE, F. H. May 9, 1951 [July 18, 1950], No. 17978/50. Class 20 (1) An animal pen has at its front a movable upright a<SP>1</SP> at one end of which is a pivoted latch d adapted selectively to engage one of several stops e on a cross bar c extending between fixed uprights a on each side of the upright a<SP>1</SP>. The upright a<SP>1</SP> is pivotally attached at d<SP>2</SP> to the pen, and when in a vertical position holds the animal's head against the adjacent fixed upright a.
Patent GB-222243-A (GB)
Title: Improvements in or relating to keys for securing railway rails in their chairs
IPC: E01B9/58
Filed: 1923-07-12
Abstract: 222,243. Macbeth, A., and Rattray, R. C. July 12, 1923. Chair keys, formed from a single piece of spring metal with upper and lower looped ends, have a central rib or ribs wedging against the loops when the key is driven into the chair, so as t'o avoid the use of wedges. The loops 15 may be split and bent from the rib 16, Fig. 3, or the rib may be formed by doubling the metal back upon itself, Fig. 13. The free side 16a of the rib 16 may end beneath, level with, or beyond the free ends 15a of the loops 15, and it may be roughened or serrated. A taper is formed either on the rib 16 or on both rib and loops. The front ends of the key may be chamfered.
Patent GB-1524464-A (GB)
Title: Purification of mercury-containing sludges
IPC: C02F11/00
Filed: 1976-05-03
Abstract: 1524464 Recovering mercury ANIC SpA 3 May 1976 [5 May 1975] 18035/76 Heading C7D Mercury is removed from a mercury-containing sludge by distillation under reduced pressure followed by two-stage condensation of the vapour, the bulk of which is condensed at sub-stmospheric pressure and the residue at super atmospheric pressure. Preferred conditions are distillation at 200-350C and -0À06 to -0À10 atmosphere gauge, followed by secondary condensation at 2-3 atmospheres and 5-35C. As particularly described, sludge is dried and roasted in oven 1, the residual ash being discharged to barometric dissolver 15 through which water is circulated by pump 17. Primary condensation of mercury takes place in condenser 18, the vapours from which are drawn off by a pump 23 and passed to high-pressure condenser 24.
Patent GB-581739-A (GB)
Title: Improvements in or relating to subaqueous sound receivers
IPC: G01S1/72
Filed: 1942-12-18
Abstract: 581,739. Sound transmitting and receiving devices. STANDARD TELEPHONES a CABLES, Ltd., and GAYFORD, M. L. Dec. 18, 1942, No. 18048. [Class 40 (iv)] A subaqueous transmitter or hydrophone comprises an electromagnetic system enclosed in a casing, at least one wall of which consists of a material (e.g. a synthetic resin) having an acoustic resistance not less than that of sea water and not more than three times that of sea water, the movable member of the electromagnetic system being directly attached to the said wall, which may be reduced in thickness to form a diaphragm. The instrument may be of the moving coil or moving armature type. In the hydrophone shown in Fig. 1, the casing of synthetic resin is in two parts 1, 2 secured by bolts, the diaphragm 11 carrying a moving coil 10 wound edgewise and mounted in a gap between polepieces 8, 24 of an annular permanent magnet 6. The magnetic system is assembled as a unit within an annular spacing member 28 by means of discs 14 slotted concentrically to give flexibility in an axial direction, and is held against a rubber damping washer 7. The coil terminals and external leads are connected to screw terminals 5. In a modification, Fig. 2 (not shown), the magnetic system comprises a short cylindrical permanent magnet, and the coil terminals and external leads are connected by screws which also secure together the front and back parts of the casing. In a further modification, Fig. 3 (not shown), the permanent magnet is secured in a soft-iron cup which is an insert moulded into a ring of synthetic resin. In another modification, Fig. 4 (not shown), the rear part of the casing is of steel secured to the front part by bolts, and the magnet system is mounted on a flexible spider carried by the front of the casing. In another modification, Fig. 5 (not shown), the diaphragm carries an iron washer serving as the armature of a two-pole magnet supported on a spider. The frequency response of the various instruments is made substantially flat by adding an additional resonance (that of the supporting spider) and by adding stiffness and damping, e.g. by the rubber washer 7 between the unit and the diaphragm and a similar washer between the unit and the back of the case.
Patent GB-350247-A (GB)
Title: Improvements relating to motion picture projecting machines
IPC: G03B21/32
Filed: 1930-06-13
Abstract: 350,247. Kinematograph projectors. UNIVERSAL STAMPING & MANUFACTURING CO., 2851, North Western Avenue, Chicago, U.S.A. June 13, 1930, No. 18143. Convention date, June 29, 1929. [Class 97 (i).] The casing of a projector contains the mechanism, the light source, and a motor having a horizontal axis, and is journalled on a base so as to be movable about an axis coincident with that of the motor. As shown, the casing 2 includes a hollow cylindrical journal 32 housing the motor 3 and rotatable in a bearing 7 secured to a base 1. A pinion 47 on a spindle 46 rotatable by a knob 49 is carried by a member 44 secured to the casing, and meshes with a rack 48 on the bearing 7 to enable the position of the casing to be adjusted. A set-screw 8 mounted in the ends of the bearing 7 enables the projector to be clamped in position when adjusted. The motor 3 drives the projector through a belt 16, and also drives a fan 35 drawing air from the lamp compartment 15 by way of a cup 29 and a channel 31, 36; air vents are provided in a detachable top cover of the compartment 15, and others, 52, are provided in the end wall of the journal 32.
Patent GB-868043-A (GB)
Title: Distributing gas to fluidized beds
IPC: B01J8/44
Filed: 1959-05-29
Abstract: An apparatus for distributing fluidising gas to a vessel (32) comprises two concentric downwardly pointing cone members (22, 24), spaced apart and sealed at their peripheries, the upper member (24) being provided with <PICT:0868043/III/1> <PICT:0868043/III/2> nozzles (36) and the lower member (22) being imperforate and provided at the apex with an inlet (16) for fluidising gas.  The numerals relate to the embodiment illustrated in Figs. 2 and 3 to be used for catalytically hydroforming naphthas which shows the apparatus in position in a generally cylindrical reactor 32 having an aperture in the bottom through which the inlet 16 for naphtha enters and to which the distributer is attached by means of annulus 92 which takes up any displacement due to expansion.  The space between the lower cone and the bottom may be filled with insulation.  The nozzles 36 are arranged to lie on concentric circles and a central nozzle 74 is provided.  The nozzles are provided with orifice plates which supply an amount of gas corresponding the position of the nozzle: in an example the nozzle 74 had an orifice diameter of 0.934 inch and succeeding rows B, C, D had diameters of 0.915, 0.905 and 0.900 inches respectively. A second, valved, inlet 35 is provided for the introduction of hydrogen, mixing takes place in the central zone 73 and the mixed gases are conducted by baffles 68 to the nozzles.  A well 54 is provided for withdrawal of the catalyst: a stripping gas may be introduced through one or more lines 62 and a fluidising gas through one or more line 64.  In an alternative construction, pipe rings are embedded in the upper cone and have slots or holes in place of the nozzles, and in the lower surfaces of the pipes, between the cones, holes of suitable size are provided in order to maintain an equal gas flow through the upper holes.  Radial ribs between the upper and lower cones may be provided.  For hydroforming, catalysts such as oxides of molybdenum (5-15%), chromium, tungsten or vanadium, or platinum (0.1-5%) supported on alumina, silica-alumina, or zinc aluminate spinel may be used at 850-1000 DEG F. and 50-500 p.s.i.g. and regenerated at 1050-1200 DEG F. and the same pressure.  The catalyst may have a particle size up to 150 microns.  The catalyst to oil ratio may be 0.5-5.0 and the superficial gas velocity 0.6-1.2 ft./sec.  A suitable feed comprises virgin or cracked naphtha of B.P. 125-450 DEG F. preheated to above 800 DEG F. together with 3000-10,000 cu. ft. of hydrogen preheated to 1050-1200 DEG F. per barrel of naphtha.  The apparatus may also be used for catalytic cracking, hydrogenation and isomerisation, and for desulphurisation, adsorption and partial oxidation of hydrocarbons.
Patent GB-306071-A (GB)
Title: An improved liquid measuring apparatus particularly applicable for dispensing predetermined quantities of lubricating oil or the like
IPC: G01F11/02
Filed: 1928-06-25
Abstract: 306,071. Thorne, R. C. Feb. 15, 1928, [Convention date]. Fixed-chamber apparatus.-Apparatus for measuring and dispensing liquid, particularly lubricating oil, comprises a measuring chamber 2, an inlet valve 44 controlling a supply pipe 46, a piston valve 19 controlling ports 20 leading to the discharge pipe 16, and trigger actuating and controlling mechanism. Brackets 31, 32 are mounted on the end plate 5 of the chamber 2. The spring-pressed trigger 35 works within a. slot in the lower bracket which also has a' depending portion 33 for convenience in working the trigger. Actuation of the trigger brings the lug 59 against the end 5S of the link 56 through which and the bell-crank lever 53 the inlet valve 44 is opened to allow the liquid to pass through the passages 49, 50 into the chamber 2, pushing back the spring-pressed piston 23 until the gland 29 strikes the adjustable stops 30. At the same time the links 60, 61 alter the indication at the window 64. The return of the trigger brings the end 38 of the bolt 34 against the link 39 connected to the rod 41 of the piston valve 19 which is then lifted off its seat 17 and uncovers the ports 20. To ensure that the chamber 2 is full before discharge commences, the trigger may be locked in its backward position. For this purpose the end of a spring-presed bell-crank lever engages the toothed upper surface of the lug 59 as the trigger is brought back, and holds it until a spring-pressed rod passing through the end 5 of the chamber is caused by the piston 23 to lift the bell-crank from engagement with the trigger.